About the Authors
- Xiaofeng Zhu
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*To whom correspondence should be addressed. E-mail: xzhu1@darwin.case.edu
Affiliation Department of Epidemiology and Biostatistics, School of Medicine, Case Western Reserve University, Cleveland, Ohio, United States of America
- Richard S. Cooper
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Affiliation Department of Preventive Medicine and Epidemiology, Stritch School of Medicine, Loyola University, Maywood, Illinois, United States of America
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: RC XZ. Analyzed the data: XZ. Wrote the paper: RC XZ.